In reply to Roberttaylor:
The Fletschhorn and the S ridge of the Weissmies at Saas would fit the bill (you would have to descent the Weissmies by the same route, not traverse via the crevassed north face). If you're looking for something longer, the S Ridge intergrale of the Moine is a much bigger undertaking than the normal route. The Aig Noire S Ridge involves no slots, though involves a pitch or two of V+ and a tricky descent. The Peigne - just about everything - would be ok.
Also the Meije SE ridge or S face - so long as you don't attempt the traverse and N face descent. The Aig. Dibona. The Pointe des Cineastes. All in the Ecrins. Most of the Bregaglia and Dolomites would be fine. The Eiger Mittellegi Ridge, followed by SW flank descent.
PS don't even think about the Vallee Blanche, whatever the time of day. I once fell into a slot at 3 am IN WINTER. It was completely invisible, covered with snow, on a "good" track. I was on the way to the Lafaille Couloir, unroped because my partner had skis and I didn't. I was very lucky - I had my axe in my hand, whacked it into good neve as my chest hit the lip of the terrifying black hole and pulled myself out. Very scary indeed.
Post edited at 13:15